Received: from maia.hub.org (maia-2.hub.org [200.46.204.251]) by mail.postgresql.org (Postfix) with ESMTP id D59F61337B61 for ; Thu, 5 May 2011 03:04:33 -0300 (ADT) Received: from mail.postgresql.org ([200.46.204.86]) by maia.hub.org (mx1.hub.org [200.46.204.251]) (amavisd-maia, port 10024) with ESMTP id 14182-03 for ; Thu, 5 May 2011 06:04:14 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from sam.nabble.com (sam.nabble.com [216.139.236.26]) by mail.postgresql.org (Postfix) with ESMTP id BEF721337B47 for ; Thu, 5 May 2011 03:04:13 -0300 (ADT) Received: from [192.168.236.26] (helo=sam.nabble.com) by sam.nabble.com with esmtp (Exim 4.69) (envelope-from ) id 1QHrfX-0002YR-UO for pgsql-performance@postgresql.org; Wed, 04 May 2011 23:04:11 -0700 Date: Wed, 4 May 2011 23:04:11 -0700 (PDT) From: Rishabh Kumar Jain To: pgsql-performance@postgresql.org Message-ID: <1304575451921-4372000.post@n5.nabble.com> Subject: Explicit joins MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Virus-Scanned: Maia Mailguard 1.0.1 X-Spam-Status: No, hits=0.864 tagged_above=-10 required=5 tests=BAYES_00=-1.9, FORGED_YAHOO_RCVD=1.63, FREEMAIL_FROM=0.001, RFC_ABUSE_POST=0.001, T_TO_NO_BRKTS_FREEMAIL=0.01, URI_HEX=1.122 X-Spam-Level: X-Archive-Number: 201105/59 X-Sequence-Number: 43568 I referred chapter 14.3 of postgres document version 9.0. explicit joins help the planner in planninng & thus improve performance. On what relations are explicit joins to be added?? I am getting data from 10 tables in a view. I don't know on which pair of tables I have to add explicit joins to improve performance. -- View this message in context: http://postgresql.1045698.n5.nabble.com/Explicit-joins-tp4372000p4372000.html Sent from the PostgreSQL - performance mailing list archive at Nabble.com.